Type-writing machine.



N0. 66IJI72. Patented Nov. 6, I900. F. W. HILLARD.

TYPE WRITING MACHINE.

(Apnlication filed Aug. 16, 1900.) N 0 III 0 d a I 2 Sheets-Shaa t I.

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F. W. HILLARD.

TYPE WRITING MACHINE.

(Application filed Aug. 16, 1900.)

(No Model.)

Patented Nov. 6, I900.

2 Sheets-Sheet 2 A INVENTOR zr z cwdami ATTORNEY dramas l a'rn'r rricn.

FBEDERIO 1V. HILLARD, OF NEW YORK, N. Y., ASSIGNOR TO THE ELLIOTT &HATCH BOOK TYPEWRITER COMPANY, OF SAME PLACE.

TYPE WRITlNG MACHINE.

SEECIFIGATION forming part of Letters Patent No. 661,472, dated November6, 1900.

Application filed August 16, 1900. Serial No. 27,039. '\No model.)

To all whom it may concern:

lieit known that I, FREDERIO W. HILLARD,

a resident of New York, (Tottenville,) in the county of Richmond andState of New York,

5 have invented certain new and useful Improvements in Type-WritingMachines, of which the following is a specification.

My invention is an improvement upon the style of ty pe-writ-in gmachines illustrated and described in United States Letters Patent, asfollows: No. 607,193, dated July 2, 1898;No. 607,274, dated July 12,1898;No. 6l1,14l6,'dated September 20, 1898; No. 62436;, dated May 9,1899; No. 634,805,.dated May 9, 1899; No.

640,699, dated January 2, 1900; No. 652,691,

dated June 20, 1900.

The invention consists in the specific featn res hereinafter describedand illustrated in the drawings and set forth in the claims.

In the accompanying two sheets of drawings, which form a partof thisspecification, Figure 1 is a plan view of several key-levers and thetype-wheel actuators and stop-arm. Figs. 2 and 3 are detailed drawings,on an enlarged scale, showing the free end of the typewheel 'stoparm inengagement, respectively, with two key-levers, one being the levernearest the middle of the keyboard and the other be- 7 ing the farthestfrom the middle of the keyboard. Fig. t is a side view, partly insection, showing the printing mechanism.

There is illustrated in Fig. 1 a carrier for the typewheehwhich ismounted lengthwise upon the type-wheel shaft, the two actuators 3 5 forthe type-wheel which engage with the faces of the carrier on oppositesides of the type wheel shaft, and certain key-levers for actuating thetype-wheel carrier, and thereby the type-wheel These levers also actuatethe 4.0 hammer; but this feature need not be described.

The type-wheel shaft A is setvertically in the machine. Upon itissleeved a type-wheel carrier 13, which consists of a hollow tube orcollar to fit over the type-wheel shaft, from the lower end of whichtube a stop-arm O for the type-wheel extends toward the front of themachine and at the upper end of which is a type-wheel-positioning memberD. This member consists of a positioningarm which extends backward inthe opposite direction and with it the type-wheel.

to the stop'arm and at its rear end is turned upwardly, so as to engagewith a spoke of the type-wheel E and position the wheel. The carrier Balso consists of two wings E E, which extend out from the type-wheelshaft at right angles to the line of the stop-arm and positioningmember, one wing lying on one side of the machine and the other on theother side. These two wings are provided with slots E E andceuteringfaces E E, with which the upper ends of the type-wheelactuators F F engage. \Vhen the parts are in normal position, the upperends of the actuators engage with the two centering-faces, and the wheelis held in its middle position. As either actuator is drivenrearwardlynpon the depression of a key it strikes the face of the slot Eon the same side of the machine with it in the lineof its travel androtates the type-wheel carrier B on the type-wheel shaft,

The end of an actuator when brought into engagement with a face of aslot E, as described, is on one side of and in front of the type-wheelshaft. The path of the actuator is in a straight line toward the rearend of the machine. Therefore as it moves rearwardly the actuator willapproach more nearly to the type-wheel shaft. and will travel down theslot E a greater or less distance, depending on how far the actuator isdriven. This looks the type-wheel carrier and actuator together andpositions the actuator properly to engage with the other face of theslot E to return the typewheel to normal position when the key'lever Kis released.

The angle throngh which the type-wheel carrier D is rotated by theactuator is determined by the location of the key-lever which isdepressed. Each lever is provided with a stop G, extending upward fromthe lever. These stops are slotted at their bases G, so that the stoparm may pass under them through the slots until the key-lever which isdepressed is reached, when the stop-arm will come into engagement withthe key-lever and stop the rotation of the type-wheel carrier and thetypewheel, thus positioning the type-wheel for printing.

The operation of the type-wheel carrier by the actuators is more clearlyand fully illus' IOO trated in Fig. 4. On depression key-lever K isfirst brought in contact with the universal bar K, through which anactuator F for the type-wheel is operated to set the type-wheel E by amechanism that is Well understood. Upon still further depression thekey-lever actuates the universal bar K mounted on the front end of thelever K for actuating the printing-hammerK. Thisprinting-hammeractuating lever K acts through a pivoted cam-lever K tothrow the printing-hammer to the printing position. The stop-arm O hasbeen heretofore constructed with substantially square ends to contactwith the stops G of the key-levers. With such construction the point onthe stoparm which engages with the various key-levers is substantiallythe same for all the levers. This results in wear upon the stop-arm andconsequent displacement of the type-wheel. It is not permissible thatthere should be any wear upon the stop-arm. The object of my inventionis to prevent wear by changing the point of contact on the stop-arm witheach key-lever. To accomplish this, instead of providing a stop-armwit-h a square end I provide a stoparm which has two circular ornearly-circular lobes H H, the face of one of which engages with thekey-levers on one side of the machine and the face of the other of whichengages with the key-levers on the other side of the machine. It followsthat the pointof contact between the end of the stop-arm and thekey-lever will depend upon the position of the key-lever in thekeyboard. This is illustrated in detail in Figs. 2 and 3, which show therange of the contact-point on the end of the stop-arm, and therefore thelength of the are that must be shaped, as here inclicated. An advantagearises from having two circular lobes instead of striking one circlearound the end of the stop-arm in that the angular difference betweensuccessive contact-points increases as the diameter of the are uponwhich these contact-points are located diminishes.

It is obvious that the configuration of the end of the stop-arm might bechanged and the shape of the stop-arm itself might also be changed andthat one lobe might be provided to engage with the key-levers on bothsides of the machine.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

1. In a type-writer, the combination of a type-wheel, key-levers, meansfor rotating the type-wheel by the key-levers, and a stop-arm and stopsoperated by the different key-levers to set the wheel, the configurationof the end of the stop-arm being such as to secure a different point ofcontact with the different stops, substantially as described.

2. In a type-writer, the combination of a type-wheel, key-levers, meansfor rota ting the type-wheel by the key-levers, and a stop-arm and'stopsoperated by the different key-levers to set the wheel, the end of thestop-arm being provided with two circular contacting faces,substantially as described.

Signed by me in New York city, New York, this 10th day of August, 1900.

FREDERIC l/V. I-IILLARD.

Witnesses:

THOMAS EWING, J12, GEORGE H. GILMAN.

